Boiler cleaner



Oct. 22, 1935. J. BAYER BOILER CLEANER Filed Oct, 1,, 2 322 7 .LE YER.

MEK

Patented Oct. 22, 1935 TENT OFFIE 2 Claims.

My invention has relation to improvements in boiler cleaners and is directed more particularly to the construction of the operating head whereby the blower element is rotated; and it consists in the novel features of construction more fully set forth in the specification and pointed out in the claims.

It is a matter of common knowledge among stationary engineers that when a boiler is fired for the purpose of raising steam, or when steam is admitted to the supply pipe of a boiler cleaner, expansion takes place, for which reason some flexibility or play must be provided for between the boiler and supporting mechanism for the boiler cleaner operating head.

It is the object of the present invention to provide comparatively simple mechanism for supporting the operating head of the boiler cleaner from the furnace wall wherein such freedom of movement between the boiler wall and blower head is permitted to allow for the expansion mentioned without imposing strains upon the supportin mechanism. I accomplish this object by providing a single support on which the weight of the operating head is carried and a suitable anchor device whereby the operating head is anchored to the boiler wall, by means of which support and anchor device the operating head is restrained only against downward movement and outward movement away from the wall but being free to move upwardly and laterally within the compass necessary because of the expansion in operation. This object, as well as the manner of accomplishing the same, will be better apparent from a detailed description of-the invention in connection with the accompanying drawing, in which:

Figure 1 is a side elevation of the operating head of my improved boiler cleaner applied to a boiler shown in section, and parts of the head being broken away; Fig. 2 is a vertical crosssection taken on the line 2-2 of Fig. 1; Fig. 3 is a vertical longitudinal section taken on the line 33 of Fig. 2; and Fig. 4 is a cross-sectional detail taken on the line l i of Fig. 3.

Referring to the drawing, T represents the boiler tubes and W the boiler wall in which is provided an opening 0 through which the blower tube 1 passes. As is well known in the art, the blower tube I is supported by suitable hangers or brackets 2 secured on the boiler tubes T. A Wall sleeve 3 is fitted into the opening 0 and a plate 4 i's'secured by studs 5 at the corners of flange 6 extending around the outer end of the wall sleeve 3. The plate 4 has a bracket 7 extending upwardly and a projection 8 extending downwardly from it and a stud 9 is screw-threaded into the upper end of bracket 1 for the purpose of anchoring the operating head H to the plate 4. The operating head H is also supported against downward vertical movement by the plate 4 through the 5 blower tube l by an adjustable supporting device comprising a supporting element I0 slidably mounted in oppositely disposed grooves II, II in the guide rails l2, l2. A threaded boss I 3 is formed adjacent to the lower edge of projection 8 10 of the plate 4 for receiving a stud I4 and the supporting element l 0 has a boss l5 formed on its lower edge which rests on said stud l4. The supporting element I0 is thus adjustably supported by the stud M which may be secured in the cor- 15 rect position by means of a lock nut [6.

The outer end of stud 9 is provided with threads t for receiving a nut i7, and over which is freely passed a thimble [8 having a flange [9 on its end adjacent to the nut ll (Figs. 1 and 3). Casing 20 C of the operating head H has mounted on it a supporting standard 20 in which the inner end of operating shaft 2| is mounted, and in which an eye bolt 22 is screw-threaded, said eye bolt projecting upwardly from the standard 20 and hav- 25 ing an oval shaped eye 23 for receiving the stud 9 and thimble I8. The flange l9 of the thimble I8 is secured in the proper position on the stud 9 for cooperating with the flanged nut 24 in holding the operating head horizontal. Figure 2 shows that the shape of the eye 23 is such to provide clear space entirely around the thimble I 8 so that a certain amount of movement of the operating head H is provided for due to the expansion of the boiler cleaner parts when the cleaner is in 35 operation. The greater amount of movement due to expansion is in a vertical plane and the oval shaped eye 23 permits the head H to move upwardly and downwardly as required due to temperature changes either in the boiler or the boiler 40 cleaner. Since the blower tube l is not confined but merely supported by the supporting element I0 it is tree to move upwardly away from said supporting element if conditions require such movement, and since it is supported on the 45 straight edge Ill of the element I!) it is also free to move laterally should the strains due to temperature changes require lateral movement.

The boiler cleaner is, of course, provided with a steam supply valve 25 disposed in the casing C 50 and adapted to be opened and closed by a cam 26 freely rotatable on the shaft 2| adjacent to its outer end and manually operable, as is well known in the art.

A plate 2'! with a central opening 28 is posi- 55 tioned on the blower tube l in contact with the flange 6 of wall sleeve 3 against which the plate is held by fiat springs 29 to seal the opening through the wall sleeve against the influx of atmospheric air into the boiler furnace.

Having described my invention, I claim:

1. In combination with a boiler, an anchor plate carried by the wall of the boiler, a boiler cleaner including a blower tube and an operating head therefor operatively connected with said tube, vertically adjustable supporting means for said head and tube comprising a supporting element fixed to the anchor plate beneath the blower tube and on which said blower tube rests, and an anchor bolt projecting outwardly from the anchor plate and so connected to the head near the top thereof as to provide relative movement between the anchor bolt and head in all directions in a plane parallel to the boiler wall.

2. In combination with a boiler, an anchor plate carried by the wall of said boiler, a boiler cleaner including a blower tube and an operating head connected therewith, a pair of guide rails on said anchor plate, a supporting plate slidably mounted between said rails, means for adjusting said plate vertically and holding the same in adjusted position, said blower tube resting on the upper edge of said plate, and an anchor bolt projecting outwardly from the anchor plate and loosely connected with the operating head.

LEO J. BAYER. 

